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On line Solution of Monovariate Equation：
    Input any unary equation directly, and then click the "Next" button to obtain the solution of the equation.
    It supports equations that contain mathematical functions.
    Current location：Equations > Monovariate Equation > The history of univariate equation calculation > Answer

    Overview: 1 questions will be solved this time.Among them
           ☆1 equations

[ 1/1 Equation]
    Work: Find the solution of equation (12.1-2*x)*(30.3+2*x)*(12.1+2*x)*(12.1-2*x)-229.98*(12.1-2*x) = 1224.4 .
    Question type: Equation
    Solution:Original question:
     (
121
10
 − 2 x )(
303
10
 + 2 x )(
121
10
 + 2 x )(
121
10
 − 2 x ) −
11499
50
(
121
10
 − 2 x ) =
6122
5
    Remove the bracket on the left of the equation:
     Left side of the equation =
121
10
(
303
10
 + 2 x )(
121
10
 + 2 x )(
121
10
 − 2 x ) − 2 x (
303
10
 + 2 x )(
121
10
 + 2 x )(
121
10
 − 2 x ) −
11499
50
(
121
10
 − 2 x )
                                             =
121
10
 ×
303
10
(
121
10
 + 2 x )(
121
10
 − 2 x ) +
121
10
 × 2 x (
121
10
 + 2 x )(
121
10
 − 2 x ) − 2 x (
303
10
 + 2 x )
                                             =
36663
100
(
121
10
 + 2 x )(
121
10
 − 2 x ) +
121
5
 x (
121
10
 + 2 x )(
121
10
 − 2 x ) − 2 x (
303
10
 + 2 x )(
121
10
 + 2 x )(
121
10
 − 2 x )
                                             =
36663
100
 ×
121
10
(
121
10
 − 2 x ) +
36663
100
 × 2 x (
121
10
 − 2 x ) +
121
5
 x (
121
10
 + 2 x )(
121
10
 − 2 x ) − 2
                                             =
4436223
1000
(
121
10
 − 2 x ) +
36663
50
 x (
121
10
 − 2 x ) +
121
5
 x (
121
10
 + 2 x )(
121
10
 − 2 x ) − 2 x (
303
10
 + 2 x )
                                             =
4436223
1000
 ×
121
10
 −
4436223
1000
 × 2 x +
36663
50
 x (
121
10
 − 2 x ) +
121
5
 x (
121
10
 + 2 x )(
121
10
 − 2 x )
                                             =
536782983
10000
 −
4436223
500
 x +
36663
50
 x (
121
10
 − 2 x ) +
121
5
 x (
121
10
 + 2 x )(
121
10
 − 2 x ) − 2 x
                                             =
536782983
10000
 −
4436223
500
 x +
36663
50
 x ×
121
10
 −
36663
50
 x × 2 x +
121
5
 x
                                             =
536782983
10000
 −
4436223
500
 x +
4436223
500
 x −
36663
25
 x x +
121
5
 x (
121
10
 + 2 x )(
121
10
 − 2 x )
                                             =
536782983
10000
 − 0 x −
36663
25
 x x +
121
5
 x (
121
10
 + 2 x )(
121
10
 − 2 x ) − 2 x
                                             =
536782983
10000
 − 0 x −
36663
25
 x x +
121
5
 x ×
121
10
(
121
10
 − 2 x ) +
121
5
 x
                                             =
536782983
10000
 − 0 x −
36663
25
 x x +
14641
50
 x (
121
10
 − 2 x ) +
242
5
 x x
                                             =
536782983
10000
 − 0 x −
36663
25
 x x +
14641
50
 x ×
121
10
 −
14641
50
 x × 2
                                             =
536782983
10000
 − 0 x −
36663
25
 x x +
1771561
500
 x −
14641
25
 x x +
242
5
                                             =
536782983
10000
 +
1771561
500
 x −
36663
25
 x x −
14641
25
 x x +
242
5
 x x
                                             =
536782983
10000
 +
1771561
500
 x −
36663
25
 x x −
14641
25
 x x +
242
5
 x x
                                             =
536782983
10000
 +
1771561
500
 x −
36663
25
 x x −
14641
25
 x x +
14641
25
 x x
                                             =
536782983
10000
 +
1771561
500
 x −
36663
25
 x x −
14641
25
 x x +
14641
25
 x x
                                             =
536782983
10000
 +
1771561
500
 x −
36663
25
 x x −
14641
25
 x x +
14641
25
 x x
                                             =
536782983
10000
 +
1771561
500
 x −
36663
25
 x x −
14641
25
 x x +
14641
25
 x x
                                             =
536782983
10000
 +
1771561
500
 x −
36663
25
 x x −
14641
25
 x x +
14641
25
 x x
                                             =
536782983
10000
 +
1771561
500
 x −
36663
25
 x x −
14641
25
 x x +
14641
25
 x x
                                             =
536782983
10000
 +
1771561
500
 x −
36663
25
 x x −
14641
25
 x x +
14641
25
 x x
                                             =
536782983
10000
 −
1332331
250
 x −
36663
25
 x x −
14641
25
 x x +
14641
25
 x x
                                             =
536782983
10000
 −
1332331
250
 x −
36663
25
 x x −
14641
25
 x x +
14641
25
 x x

    The solution of the equation:
        x1≈-15.313366 , keep 6 decimal places
        x2≈-5.732392 , keep 6 decimal places
        x3≈5.416133 , keep 6 decimal places
        x4≈6.529625 , keep 6 decimal places    
    There are 4 solution(s).

解程的详细方法请参阅：《方程的解法》


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